Walter you have simply Tiered up too fast :) mate.
You have now recognised what is needed to be a little more competitive within the tiers.
Personally, right now if I were you , I would keep your new Big Bertha Driver , Sell the other 2 drivers and add a couple of extra Cleveland wedges which will see you landing closer to the green on more approaches.
Maximise your CDP bonus, you do have an XP Boost available to you in the Pro Shop if you wish. Buy it on the 1st game of the day at the 9/18th hole and use it for another 9 or 18 as well.
WalterHagenJnr: point bonus based on the amount of credits invested
That would be totally unfair.